کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5705918 1603167 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessing the spatial relationship between fixation and foveal specializations
ترجمه فارسی عنوان
ارزیابی روابط مکانی فیزیکی و فیزیکی
کلمات کلیدی
مورفولوژی فوئال، گودال فوئال منطقه فلوئال آواسکولی، تراکم مخروط، رفع اشکال،
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
چکیده انگلیسی
Increased cone photoreceptor density, an avascular zone (FAZ), and the displacement of inner retinal neurons to form a pit are distinct features of the human fovea. As the fovea provides the majority of our vision, appreciating how these anatomical specializations are related is important for understanding foveal development, normal visual function, and retinal disease. Here we evaluated the relationship between these specializations and their location relative to the preferred retinal locus of fixation (PRL). We measured foveal pit volume, FAZ area, peak cone density, and location of the PRL in 22 subjects with normal vision using optical coherence tomography and adaptive optics scanning light ophthalmoscopy. Foveal pit volume was positively correlated with FAZ area; however, peak cone density was not correlated with pit volume. In addition, there was no systematic offset of the location of any of these specializations relative to PRL, and there was no correlation between the magnitude of the offset from PRL and the corresponding foveal specialization measurements (pit volume, FAZ area, peak cone density). The standard deviation of our PRL measurements was consistent with previous measurements of fixational stability. These data provide insight into the sequence of events during foveal development and may have implications for visual function and retinal disease.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 132, March 2017, Pages 53-61
نویسندگان
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